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Coverage of highly-cited documents in Google Scholar, Web of Science, and Scopus: a multidisciplinary comparison

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Coverage of highly-cited documents in Google Scholar, Web of Science, and Scopus: a multidisciplinary comparison

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dc.contributor.author Martín-Martín, Alberto es_ES
dc.contributor.author Orduña Malea, Enrique es_ES
dc.contributor.author Delgado-López-Cózar, Emilio es_ES
dc.date.accessioned 2020-06-11T03:32:48Z
dc.date.available 2020-06-11T03:32:48Z
dc.date.issued 2018-09 es_ES
dc.identifier.issn 0138-9130 es_ES
dc.identifier.uri http://hdl.handle.net/10251/145981
dc.description.abstract [EN] This study explores the extent to which bibliometric indicators based on counts of highly-cited documents could be affected by the choice of data source. The initial hypothesis is that databases that rely on journal selection criteria for their document coverage may not necessarily provide an accurate representation of highly-cited documents across all subject areas, while inclusive databases, which give each document the chance to stand on its own merits, might be better suited to identify highly-cited documents. To test this hypothesis, an analysis of 2515 highly-cited documents published in 2006 that Google Scholar displays in its Classic Papers product is carried out at the level of broad subject categories, checking whether these documents are also covered in Web of Science and Scopus, and whether the citation counts offered by the different sources are similar. The results show that a large fraction of highly-cited documents in the Social Sciences and Humanities (8.6¿28.2%) are invisible to Web of Science and Scopus. In the Natural, Life, and Health Sciences the proportion of missing highly-cited documents in Web of Science and Scopus is much lower. Furthermore, in all areas, Spearman correlation coefficients of citation counts in Google Scholar, as compared to Web of Science and Scopus citation counts, are remarkably strong (.83¿.99). The main conclusion is that the data about highly-cited documents available in the inclusive database Google Scholar does indeed reveal significant coverage deficiencies in Web of Science and Scopus in several areas of research. Therefore, using these selective databases to compute bibliometric indicators based on counts of highly-cited documents might produce biased assessments in poorly covered areas. es_ES
dc.description.sponsorship Alberto Martín-Martín enjoys a four-year doctoral fellowship (FPU2013/05863) granted by the Ministerio de Educación, Cultura, y Deportes (Spain). es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation.ispartof Scientometrics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Highly-cited documents es_ES
dc.subject Google Scholar es_ES
dc.subject Web of Science es_ES
dc.subject Scopus es_ES
dc.subject Coverage es_ES
dc.subject Academic journals es_ES
dc.subject Classic papers es_ES
dc.subject.classification BIBLIOTECONOMIA Y DOCUMENTACION es_ES
dc.title Coverage of highly-cited documents in Google Scholar, Web of Science, and Scopus: a multidisciplinary comparison es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s11192-018-2820-9 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MECD//FPU2013%2F05863/ES/FPU2013%2F05863/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Comunicación Audiovisual, Documentación e Historia del Arte - Departament de Comunicació Audiovisual, Documentació i Història de l'Art es_ES
dc.description.bibliographicCitation Martín-Martín, A.; Orduña Malea, E.; Delgado-López-Cózar, E. (2018). Coverage of highly-cited documents in Google Scholar, Web of Science, and Scopus: a multidisciplinary comparison. Scientometrics. 116(3):2175-2188. https://doi.org/10.1007/s11192-018-2820-9 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s11192-018-2820-9 es_ES
dc.description.upvformatpinicio 2175 es_ES
dc.description.upvformatpfin 2188 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 116 es_ES
dc.description.issue 3 es_ES
dc.relation.pasarela S\374448 es_ES
dc.contributor.funder Ministerio de Educación, Cultura y Deporte es_ES
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